Newly installed Windows 10 won't connect to work domain

Question

_{Monday, September 24, 2018 1:23 PM}

I origianly posted this on Microsoft Forums but they said I should post this here so...

I upgraded a computer at my work to Windows 10 and when it was running Windows 7 it had no problems but now when I try to connect it to the domain I get the error "That domain couldn't be found. Check the domain name and try again." but I am entering the domain name right! And other computers on the server have no problem! And yes, it is connected to the internet and I did install all the updates! Is there any way to fix this problem or do I have to downgrade back to Windows 7? (Which I don't want to do)

All replies (4)

_{Monday, September 24, 2018 4:40 PM}

Can you ping the DC(s)?

Are you able to join the computer to the domain if an antivirus software has turned off?

_{Monday, September 24, 2018 5:00 PM}

If you are trying to join to single label domain like Contoso, try contoso.com or whatever your full domain is.

_{Tuesday, September 25, 2018 2:31 AM}

Check your Internet Protocol Version 4(TCP/IPv4) Properties, type the DC’s IP address in the Preferred DNS, IP address automatically.

Besides, use the full domain name, you can see it on other PC’s system properties interface.

Regards

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_{Wednesday, September 26, 2018 2:17 PM}

Is it a single name domain?. If the answer is yes, try this:

If it's a single name domain (i.e contoso, and not contoso.org), the answer is this (do this changes in the workstation, not in the dc):

1. Start, Run, write regedit,ENTER.
   • Lookup this subkey: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Netlogon\Parameters
   • Locate AllowSingleLabelDnsDomain. If the key AllowSingleLabelDnsDomain does not exist:
     1. Edit, New, DWORD.
     2. Write AllowSingleLabelDnsDomain as key name, and ENTER.
   • Double click AllowSingleLabelDnsDomain.
   • Set the Value to 1.
2. Exit regedit
3. Try to join the domain